Re: OT, proper phone wire question?/Twists & Guage ?
lee writes:
> suppose one was to use say 18 guage speaker wire..it's twisted(like cat),
> it's unshielded(like cat)..but a bit larger..less resistance is my
> thinking..where am i wrong here..not enuff twists perhaps?
The difference in resistance is unimportant. The speaker wire will have
different characteristic impedance due to being larger and having a
different number of twists per foot. This will cause reflections that will
interfere with transmission. The speaker wire also is not designed as
transmission line and so will not be of uniform and consistent impedance.
The insulation on the speaker wire may also be lossy at the frequencies of
interest.
--
John Hasler
john@dhh.gt.org (John Hasler)
Dancing Horse Hill
Elmwood, WI
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